Technical data – Vaisala GMW20 Benutzerhandbuch
Seite 9
User’s Guide_____________________________________________________ GMW20
7
Technical Data
Property
Description / value
Measuring ranges
0 ... 2000 ppm CO
2
0 ... 5000 ppm CO
2
0 ... 10 000 ppm CO
2
0 ... 20 000 ppm CO
2
Accuracy at 25 °C against certified
factory references (includes
repeatability and calibration
uncertainty)
(2 % of range + 2 % of reading)
Long-term stability
<
5 % of range / 5 years
Response time (0 ... 63%)
1 minute
Warm-up time
1 minute
15 minutes full specifications
Operating temperature range
-5 … +45 °C (+23 … +113 °F)
Storage temperature range
-20 ... +70 °C (-4 … +158 °F)
Humidity range
0 ... 85 % RH , non-condensing
Output signal for CO
2
Selectable 0...20 mA or 4...20 mA
and 0...10 V
Resolution of analog outputs
8 bits
Optional outputs
Relay output
LonWorks® interfaces
Recommended external load
current output
voltage output
max. 500
min. 1 k
Power supply
nominal 24 VAC/VDC
(18 ... 30 VDC)
Power consumption
< 2.5 W
Housing material
ABS plastic
Housing colour
NCS 0502-G50Y